Cheapest Price Indoor Aqi Monitor - EM21 Embedded Indoor Air Quality Monitor – Tongdy

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Cheapest Price Indoor Aqi Monitor - EM21 Embedded Indoor Air Quality Monitor – Tongdy Detail:

Real-time indoor air quality detection, single or combined measurement selection: PM2.5, CO2, TVOC, HCHO,Temperature and RH
3-color light indicates the range of the main measurement
Screen display optional

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EM21 embedded installation Indoor Air Quality Monitor Simple and elegant type

❑LED Tri-colored lights
❑Visible air quality level
❑Compact and simple design
❑Gather real-time data and display history chart via a software platform

EM21 embedded installation Indoor Air Quality Monitor Screen display type

Show the detailed air quality on the screen
Display the real time values and 24-hour average of PM2.5, TVOCs, CO2
With on/off touch button to turn off /turn on screen

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Technology Specifications

Specifications	CO2	TVOC	PM2.5	Temp&RH	HCHO
sensor	NDIR	Metal oxide semiconductor	Laser particle sensor Light scattering method	High-precision digital integrated Temperature and humidity sensor	Electrochemical Formaldehyde sensors
Measuring range	400～5,000ppm	0~ 4.0mg∕㎥	0~500μg∕㎥	Temp:-20℃~60℃ Humidity:0~99%RH	0~0.6mg/m3
Output Resolution	1ppm	0.001mg∕㎥	1μg∕㎥	Temp:0.01℃ Humidity:0.01%RH	0.001mg∕㎥
Accuracy	±50ppm + 3% of reading or 75ppm	<15%	<15%	Temp:±0.8℃ Humidity:±4.5%RH	±0.005mg/㎥+5% of reading

General Specifications
Detection Parameters(max.)	PM2.5;CO2;TVOC;Temp&RH;HCHO	Power Supply	24VAC/VDC±10%100~240VAC
Output (Optional)	RS485 (Modbus RTU) WIFI @2.4 GHz 802.11b/g/n RJ45 (Ethernet TCP) PoE power supply Optional	Shell material and IP level	PC fireproof material IP30
Operating Environment	Temp：-10~60℃ Humidity︰0~99%RH	Overall Dimension	91.00mm111.00mm51.00mm
Storage Condition	0℃~50℃ 0~70%RH	Installation standard	Standard 86/50 pipe box (installation hole distance 60mm) American standard pipe box (installation hole distance 84mm)

Understand your air quality at all times

❑View real-time and historical data through RS485 or cloud-based platform such as MyTongdy , in computer or mobile APP

❑Check out or download data to analyze your indoor air quality and identify the pollution source as frequently as you need

❑Handle your indoor air quality by control the fresh air system or purification equipment automatically

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Application scenarios

Widely used in commercial or residential spaces

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Models Guide

No.	Model	PM2.5	CO2	Temp&RH	VOC	HCHO	Output	Display	Power Supply
1	EM21-B/S12C/D	·	·				RS485	B No display S with display	C: 24VAC/VDC D: 100~240VAC
2	EM21-B/S13C/D	·	·	·
3	EM21-B/S15C/D	·		·	·
4	EM21-B/S17C/D	·	·	·		·
5	EM21-B/S18C/D	·	·	·	·
6	EM21-B/S22C/D	·	·				WI-FI
7	EM21-B/S23C/D	·	·	·
8	EM21-B/S25C/D	·		·	·
9	EM21-B/S27C/D	·	·	·		·
10	EM21-B/S28C/D	·	·	·	·
11	EM21-B/S32C/D	·	·
12	EM21-B/S33C/D	·	·	·			RJ45 Ethernet (please contact our sales department for POE Power Supply)
13	EM21-B/S35C/D	·		·	·
14	EM21-B/S37C/D	·	·	·		·
15	EM21-B/S38C/D	·	·	·	·

We provide commercial air quality monitors

Including- indoor, in-duct, outdoor monitors

Help you build healthy indoor air quality

Tongdy Sensing Technology Corporation

Address:Building 8, No.9, Dijing Rd., Haidian Dist., Beijing 100095, China

Website:www.tongdy.com

Email:info@tongdy.com

Phone:86 10 59738930

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We will constantly satisfy our respected customers with our good excellent, superior value and superior assistance due to we're additional experienced and far more hard-working and do it in cost-effective way for Cheapest Price Indoor Aqi Monitor - EM21 Embedded Indoor Air Quality Monitor – Tongdy , The product will supply to all over the world, such as: Vancouver, Thailand, Luxembourg, Our mission is to deliver consistently superior value to our customers and their clients. This commitment permeates everything we do, driving us to continuously develop and improve our products and the processes to fulfill your needs.

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